Finding the Fourth Proportional to 13,314.04, 18,372.42 and 7,345.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,314.04 : 18,372.42 = 7,345.72 : x
2. Step 2: Convert to fraction form
   13,314.04/18,372.42 = 7,345.72/x
3. Step 3: Cross multiply
   13,314.04x = 18,372.42 × 7,345.72
4. Step 4: Simplify right side
   13,314.04x = 134,958,653.04
5. Step 5: Solve for x
   x = 134,958,653.04/13,314.04
6. Step 6: Final answer
   x = 10,136.57